Ear cushion



S. SCHULHOFF EAR CUShTON m, (AfL/L Filed May 2o, 1924 SAUL SCHULHOFF, OFTRENTON, NEW JERSEY.

EAR CUSHION.

Application filed May 20,

rlhis invention comprehends certain new and useul improvements incushions for the ear pieces of telephone or radio head sets, and theinvention has for its object a simple device of this character so formedthat it can be easily and cheaply manufactured out olI ordinary solidmolded rubber as distinguished from sponge rubber or other highlyelastic soft rubber, while at the same time sutiicient pneumatic actionis secured which will render the device comfortable when pressed againstones ear.

In the accompanying drawing- Figure l is a transverse sectional viewtaken through a cushion constructed in accordance with an embodiment ofmy invention and in applied position, the associated receiver beingdiagrammatically indicated by broken lines, the line of section beingtaken substantially on the line 1--1 ot Figure 2;

v Figure 2 is a view in front elevation ot the cushion as illustrated inFigure 1 Figure 3 is view in rear elevation of the cushion as hereindisclosed.

My improved ear cushion for telephone receivers and the ear pieces oftelephone and radio head sets is a molded article consisting ot' acircular hollow rim portion l, the interior of which forms an annularchamber 2, and an integral skirt or band 3 which is preferably taperedin cross section as best illustrated in Fig. l, and which is designed toencircle and snugly embrace a receiver R or the like, as indicated indotted lines, so as to hold the device securely in place.

The front tace ln ot the rim portion l tapers inwardly as shown andforms the front wall of a circular disc-like member 4f which is formedwith the centrally disposed aperture designed to register with theopening in the receiver or car piece to which the. cushion is attached.

lt is to be especially noted that the tapered edge ot' the disc el formsan annular, laterally projecting` rib (i which is .in transverse reistry with a corresponding or complemental annular rib 7 pr jectinginwardly at the junction of the skirt or band 3 with the rim portion l,these two annular ribs (l and 'l' being slightly spaced from each otheras shown, to produce an annular restricted opening 8 which establishescommunication between the chamber 2 and the atmosphere or interior ofthe skirt or band 3 in the normal condition of the device. ln otherwords, the chamber 2 is, by means of 1924. Serial No. 714,618.

this annular opening 8, normally open at one side to the atmosphere butit is to be understood that the word normal is used in a comparative orrelative sense. That is to say, it is meant to qualify the device whenit is in its ordinary condition unapplied to the receiver or ear piece.`When the device is applied to the receiver or ear piece, the latterwill abut against the ribs 6 and 7 and close up the opening` 8 wherebythe rim l will be pneumatically sealed to all intents and purposes, atleast sutliciently to produce a very soft structure which will becomfortable when pressed against ones ear while at the same time thereis no true pneumatic cushion formed such as would be liable to easypuncture and the device while made ot the Ordinar solid`m ilcled rubber,will have the desiree eit'ectwitliutbhrg-tormed olI the relativelyexpensive sponge rubber or other highly elastic sott rubber which isditlicult to manufacture into articles such as these.

l claim l. As a new article of manufacture, the herein-described earcushion, comprising a hollow rim portion, provided with means torattaching` it to an ear piece, and a disk-like member integrallyconnected with said rim and having an outer margin which constitutes anoutwardly projecting annular rib, the rim being formed with acomplementai inwardly projecting annular rib spaced 'from the firstnamed rib to produce therewith a restricted annular opening, as and forthe purpose set forth.

2. As a new article of manufacture, the herein-described ear cushionformed ot solid rubber and comprising a circular rim portion providedwith an annular chamber, an instrument-encircling band integrallyconnected with said rim,- a disk-like member also integrally connectedwith said rim within said band, the outer margin ot the disklike memberconstitutingl an outwardly projecting annular rib and the rim beingtermed with a complemental inwardly projecting annular rib in transverseregistry with the :Erst named rib and spaced therefrom to produce arestricted annular opening establishing communication between thechamber and the rim and the interior ot the band as and for the purposeset forth.

In testimony whereof I hereunto aliix my signature.

SAUL SCHULHOFF.

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